Sure it looks cool, but, come on! There are enough accidents involving jet-skis and regular jet boats. Who is to say that when one of these rolls out in a local community lake that some drunk will either be behind it or wheeling it and the next thing you know, ruh roh...

At first... but I think it would get old after a while. The options seem pretty limited. And it must beat the crap out of you. Would be really cool if it could stay under water for a few minutes at least.